Answer:
Total cost of lunch is $15.21.
Step-by-step explanation:
0.17 x 13 = 2.21.
13 + 2.21 = 15.21
Answer:the total cost of the lunch, including without the tax is $15.21
Step-by-step explanation:
The cost of Joseph's lunch at the restaurant without tax is $13.00. He leaves the waiter a tip of 17% of the cost of the lunch without tax. This means that the value in dollars of the tip which he gave the waiter would be 17/100 × 13 = 0.17×13 = $2.21
The total cost of the lunch without tax would be the sum of the value of the tip and the cost of the lunch without tax. It becomes
13 + 2.21 = $15.21
